distributor question

When you say 'mild' 360, is the cam larger than stock. If so, a stock vac adv unit will most likely be erratic in operation with the reduced vacuum. This is a common problem & VA gets the blame when the real culprit is the person who is doing the job does understand the parameters involved.
Specs on engine
360 bored 0.060
Stock crank, rods, dished pistons
Hughes whiplash cam
Adjustable 273 rockers
Sidewinder aluminum heads(171 intake runners, 63 cc chambers)
Port matched Wieand Stealth imtake
Holley 650 dp

2600 stall
Reverse manual 904
8.25 rear open with 3:55